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Analogue simulation of quantum gravity black hole models in a dc-SQUID array.

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This study introduces an analog quantum simulation to explore stellar collapse and bounce. Researchers used a SQUID array to model light propagation in black hole-white hole spacetimes, finding downstream radiation more experimentally viable.

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Area of Science:

  • Quantum simulation
  • Astrophysics
  • Analog gravity

Background:

  • Stellar collapse and bounce phenomena are complex astrophysical events.
  • Simulating extreme gravitational environments like black hole-white hole spacetimes is challenging.
  • Analog gravity offers a potential pathway to study such phenomena.

Purpose of the Study:

  • To propose and detail an analog quantum simulation for studying stellar collapse and bounce.
  • To investigate the behavior of a massless scalar field in a black hole-white hole spacetime.
  • To assess the experimental feasibility of simulating infalling and outfalling radiation.

Main Methods:

  • An analog quantum simulation using a SQUID array.
  • Modeling a massless scalar field propagating in a curved spacetime.
  • Altering light propagation using external magnetic fields.
  • Analyzing infalling (downstream) and outfalling (upstream) radiation scenarios.

Main Results:

  • The simulation successfully models light propagation in a black hole-white hole spacetime.
  • Magnetic flux profiles were computed for both downstream and upstream radiation.
  • Downstream radiation (infalling) was identified as more experimentally suitable.

Conclusions:

  • Analog quantum simulations are a viable tool for studying astrophysical phenomena like stellar collapse.
  • The proposed SQUID array system offers a controllable platform for analog gravity experiments.
  • Experimental conditions favoring downstream radiation present a more practical approach for future research.